Celebrities Who Have Their Own Fashion Lines

What makes one into a celebrity? Some may say it's starring in a big-screen film or being cast for a TV-series role. But these stars prove that if you want to make bank, you hit the drawing board -- and the sewing machine.

Take stars like Whitney Port, Justin Timberlake, andGwen Stefani for example -- they've each managed to maintain their A-list status while cranking out apparel, accessories, and leather goods to consumers and fans alike. Another success story: Jessica Simpson reported back in April that her line, Jessica Simpson Collection,has raked in $750 million!

So why do these already-busy celebs choose to wear another hat? David Beckham, who's married to fashion superstar Victoria Beckham said it best when referring to why he plans to launch his own underwear line in 2011: "I'm just a person who has been fortunate to explore other interests and passions outside of the game I love. I will always be associated with my sport but I am now working across other areas that will continue long after my career has finished."